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1331100222 = 23221850037
BaseRepresentation
bin100111101010110…
…1111101000111110
310102202200220020020
41033111233220332
510211230201342
6340030033010
744662110444
oct11725575076
93382626206
101331100222
1162340a331
12311948766
13182a0698a
14c8ad8b94
157bcd50ec
hex4f56fa3e

1331100222 has 8 divisors (see below), whose sum is σ = 2662200456. Its totient is φ = 443700072.

The previous prime is 1331100181. The next prime is 1331100259. The reversal of 1331100222 is 2220011331.

It is a sphenic number, since it is the product of 3 distinct primes.

1331100222 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110925013 + ... + 110925024.

It is an arithmetic number, because the mean of its divisors is an integer number (332775057).

Almost surely, 21331100222 is an apocalyptic number.

1331100222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1331100222 is a wasteful number, since it uses less digits than its factorization.

1331100222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221850042.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1331100222 is about 36484.2462166892. The cubic root of 1331100222 is about 1100.0276086734.

Adding to 1331100222 its reverse (2220011331), we get a palindrome (3551111553).

The spelling of 1331100222 in words is "one billion, three hundred thirty-one million, one hundred thousand, two hundred twenty-two".

Divisors: 1 2 3 6 221850037 443700074 665550111 1331100222